{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:6O2J324Z3G5NYZOE3NJVEOYTDX","short_pith_number":"pith:6O2J324Z","canonical_record":{"source":{"id":"2105.09654","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-05-20T10:40:24Z","cross_cats_sorted":[],"title_canon_sha256":"943258e49c641deb491ae85b2f41e5fb954666f48b300ba0fb3fbba612e5252b","abstract_canon_sha256":"d263b777d3f4db8a23e6801e66a85f6dd184cb1158f9434c86cd4b420892bfdd"},"schema_version":"1.0"},"canonical_sha256":"f3b49deb99d9badc65c4db53523b131dc46613a88ec263a61d05a14ad3f7aba8","source":{"kind":"arxiv","id":"2105.09654","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.09654","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"2105.09654v1","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.09654","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"6O2J324Z3G5N","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_16","alias_value":"6O2J324Z3G5NYZOE","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_8","alias_value":"6O2J324Z","created_at":"2026-07-05T05:20:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:6O2J324Z3G5NYZOE3NJVEOYTDX","target":"record","payload":{"canonical_record":{"source":{"id":"2105.09654","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-05-20T10:40:24Z","cross_cats_sorted":[],"title_canon_sha256":"943258e49c641deb491ae85b2f41e5fb954666f48b300ba0fb3fbba612e5252b","abstract_canon_sha256":"d263b777d3f4db8a23e6801e66a85f6dd184cb1158f9434c86cd4b420892bfdd"},"schema_version":"1.0"},"canonical_sha256":"f3b49deb99d9badc65c4db53523b131dc46613a88ec263a61d05a14ad3f7aba8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:20:32.281523Z","signature_b64":"ubOSnb5flcvDbzEeMh+eeHwjdeZ0jwNPAlv0WBqWfuIRtS2eLfTrdw9+EiYnc1a7Dz3KU97knLYotnPAembmDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3b49deb99d9badc65c4db53523b131dc46613a88ec263a61d05a14ad3f7aba8","last_reissued_at":"2026-07-05T05:20:32.281128Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:20:32.281128Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.09654","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HBAo6XB4K/KXioaIpBf4i99IIgseUlt3baLG1EblzBXYEn9jUhSItV8svj5I0eNVG7IJuGxjmgxmIjkqvSYVAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T19:50:01.763872Z"},"content_sha256":"c62b56d123031d4c94dd28319082c66d991d079ebd8aebd67b7f575654ce4480","schema_version":"1.0","event_id":"sha256:c62b56d123031d4c94dd28319082c66d991d079ebd8aebd67b7f575654ce4480"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:6O2J324Z3G5NYZOE3NJVEOYTDX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\Lambda(1405)$ mediated triangle singularity in the $K^-d\\to p\\Sigma^-$ reaction","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Albert Feijoo, Eulogio Oset, Lian Rong Dai, Raquel Molina","submitted_at":"2021-05-20T10:40:24Z","abstract_excerpt":"We study for the first time the $p\\Sigma^-\\to K^-d$ and $K^-d\\to p\\Sigma^-$ reactions close to threshold and show that they are driven by a triangle mechanism, with the $\\Lambda(1405)$, a proton and a neutron as intermediate states, which develops a triangle singularity close to the $\\bar{K}d$ threshold. We find that a mechanism involving virtual pion exchange and the $K^-p\\to\\pi^+\\Sigma^-$ amplitude dominates over another one involving kaon exchange and the $K^-p\\to K^-p$ amplitude. Moreover, of the two $\\Lambda(1405)$ states, the one with higher mass around $1420$ MeV, gives the largest cont"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.09654","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.09654/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nQeoIJv0xjeDNw7bdU2tBsTepKZs+tp9DirDf1O4yvIc2zu5BfVyxGav+k7a86oe01cp8l/jbTyy1wcFlQO1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T19:50:01.765661Z"},"content_sha256":"43ce417f93383f961df1482d776628bad79765868bada47b693e9e549a98405e","schema_version":"1.0","event_id":"sha256:43ce417f93383f961df1482d776628bad79765868bada47b693e9e549a98405e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/bundle.json","state_url":"https://pith.science/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-17T19:50:01Z","links":{"resolver":"https://pith.science/pith/6O2J324Z3G5NYZOE3NJVEOYTDX","bundle":"https://pith.science/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/bundle.json","state":"https://pith.science/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6O2J324Z3G5NYZOE3NJVEOYTDX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6O2J324Z3G5NYZOE3NJVEOYTDX","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d263b777d3f4db8a23e6801e66a85f6dd184cb1158f9434c86cd4b420892bfdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-05-20T10:40:24Z","title_canon_sha256":"943258e49c641deb491ae85b2f41e5fb954666f48b300ba0fb3fbba612e5252b"},"schema_version":"1.0","source":{"id":"2105.09654","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.09654","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"2105.09654v1","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.09654","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"6O2J324Z3G5N","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_16","alias_value":"6O2J324Z3G5NYZOE","created_at":"2026-07-05T05:20:32Z"},{"alias_kind":"pith_short_8","alias_value":"6O2J324Z","created_at":"2026-07-05T05:20:32Z"}],"graph_snapshots":[{"event_id":"sha256:43ce417f93383f961df1482d776628bad79765868bada47b693e9e549a98405e","target":"graph","created_at":"2026-07-05T05:20:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2105.09654/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study for the first time the $p\\Sigma^-\\to K^-d$ and $K^-d\\to p\\Sigma^-$ reactions close to threshold and show that they are driven by a triangle mechanism, with the $\\Lambda(1405)$, a proton and a neutron as intermediate states, which develops a triangle singularity close to the $\\bar{K}d$ threshold. We find that a mechanism involving virtual pion exchange and the $K^-p\\to\\pi^+\\Sigma^-$ amplitude dominates over another one involving kaon exchange and the $K^-p\\to K^-p$ amplitude. Moreover, of the two $\\Lambda(1405)$ states, the one with higher mass around $1420$ MeV, gives the largest cont","authors_text":"Albert Feijoo, Eulogio Oset, Lian Rong Dai, Raquel Molina","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-05-20T10:40:24Z","title":"$\\Lambda(1405)$ mediated triangle singularity in the $K^-d\\to p\\Sigma^-$ reaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.09654","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:c62b56d123031d4c94dd28319082c66d991d079ebd8aebd67b7f575654ce4480","target":"record","created_at":"2026-07-05T05:20:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d263b777d3f4db8a23e6801e66a85f6dd184cb1158f9434c86cd4b420892bfdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-05-20T10:40:24Z","title_canon_sha256":"943258e49c641deb491ae85b2f41e5fb954666f48b300ba0fb3fbba612e5252b"},"schema_version":"1.0","source":{"id":"2105.09654","kind":"arxiv","version":1}},"canonical_sha256":"f3b49deb99d9badc65c4db53523b131dc46613a88ec263a61d05a14ad3f7aba8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3b49deb99d9badc65c4db53523b131dc46613a88ec263a61d05a14ad3f7aba8","first_computed_at":"2026-07-05T05:20:32.281128Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:20:32.281128Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ubOSnb5flcvDbzEeMh+eeHwjdeZ0jwNPAlv0WBqWfuIRtS2eLfTrdw9+EiYnc1a7Dz3KU97knLYotnPAembmDw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:20:32.281523Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.09654","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c62b56d123031d4c94dd28319082c66d991d079ebd8aebd67b7f575654ce4480","sha256:43ce417f93383f961df1482d776628bad79765868bada47b693e9e549a98405e"],"state_sha256":"40f48230daa4402af99e62fa70f0119cdd6c7bc6c6f363dc02da9e80a891eb97"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1i793csguRuBoSqeeD9gUplMNzGLPpD+e+40WGjCX7Ja9ztd6b9gTb8ZMgfgMniqE2JLTd7WvXDDhBw4mQPaDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T19:50:01.785247Z","bundle_sha256":"82a206f3210f1c419d1690590e023cbcadba64fe368652ef4ff4606bf86f79da"}}